Or the user can speak the digits of a number to be dialed.

For example, in one section the user listens to questions and must speak answers to continue.

All the users in your article spoke on the condition of anonymity.

For example, keyboards become a barrier when users do not speak English.

A user would speak the card number after the appropriate tones instead of punching it in.

This results in a series of signals representing these modified frequencies at any particular time as the user speaks.

And don't forget that our users may not even speak the same language as we take our systems enterprise wide.

A user must speak clearly and loudly enough to be picked up by a microphone attached to the computer.

A user must speak several phrases to teach the software the expected volume and pitch.

To start a dialog, the user speaks into the microphone and the system records his or her voice.